Probably the invention of Papyrus (paper)
Answer:
By first playing Italy, France and Britain against each other (they were trying to takeover Ethiopia), while this was happening, he built a large arsenal of modern weapons. When Italy advanced into Ethiopia, Menelik II declared war and successfully defeated the Italians and kept Ethiopia independent.
Their owners would bring them like just one small bowl of rice everyday or even less then that
The answer should be D) 5,000 and 6,000.